#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>
#include<utility>

using namespace std;

#define int long long
#define endl "\n"

constexpr long long INF = (long long)1e18;
constexpr long long MOD = 998244353; 

struct fast_io {
	fast_io(){
		std::cin.tie(nullptr);
		std::ios::sync_with_stdio(false);
	};
} fio;


signed main(){
	cout<<fixed<<setprecision(10);
	
	int N, Q;
	vector<int> A, B;
	vector<vector<int>> dp;
	
	cin>>N>>Q;
	
	A.resize(N);
	B.resize(Q);
	dp.resize(2, vector<int>(N+1));

	
	for(int i = 0; i < N; i++){
		cin>>A[i];
	}
	
	dp[0][0] = 1;
	
	for(int i = 0; i < N; i++){
		for(int j = 0; j <= i; j++){
			dp[(i+1)%2][j] += dp[(i)%2][j] * (A[i] - 1);
			dp[(i+1)%2][j+1] += dp[(i)%2][j];
			dp[(i+1)%2][j] %= MOD;
			dp[(i+1)%2][j+1] %= MOD;
			
			dp[i%2][j] = 0;
		}
	}

	for(int i = 0; i < Q; i++){
		cin>>B[i];
		
		cout<<dp[N%2][B[i]]<<endl;
	}
	
	return 0;
}